Table 4.
Model | Variable | Coefficient estimate (95% CI) | P-value |
---|---|---|---|
Unadjusted |
Time of day |
0.33 (0.25, 0.41) |
<0.001 |
Dialysis day |
0.21 (0.02, 0.39) |
0.03 |
|
Adjusted for demographics* |
Age (per year) |
−0.03 (−0.04, -0.01) |
<0.001 |
Sex (female vs. male) |
−0.08 (−0.51, 0.39) |
0.80 |
|
Race (black vs. non-black) |
−0.42 (−0.84, 0.09) |
0.11 |
|
Time of day |
0.33 (0.25, 0.41) |
<0.001 |
|
Dialysis day |
0.21 (0.03, 0.40) |
0.03 |
|
Demographics + Kt/V |
Age (per year) |
−0.03 (−0.04, -0.01) |
<0.001 |
Sex (female vs. male) |
−0.15 (−0.70, 0.42) |
0.67 |
|
Race (black vs. non-black) |
−0.69 (−1.21, -0.07) |
0.03 |
|
Kt/V |
−0.63 (−1.8, 0.56) |
0.34 |
|
Time of day |
0.33 (0.23, 0.42) |
<0.001 |
|
Dialysis day | 0.17 (−0.04, 0.38) | 0.10 |
*Serial additional adjustment for diabetes, cardiovascular disease, albumin, hemoglobin, and phosphate did not affect time of day or dialysis day coefficients.